An engine driver moving towards a wall w...

An engine driver moving towards a wall with a velocity of 60 m/s emits a note of 1400 Hz. Speed of sound in air is 340 m/s .The frequency of the note after reflection from the wall as heard by the engine driver is

1600 Hz

1200 Hz

1000 Hz

2000 Hz

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WAVE MOTION
TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos
SURFACE TENSION
TARGET PUBLICATION|Exercise EVALUATION TEST|21 Videos
WAVE THEORY OF LIGHT
TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

Similar Questions

Explore conceptually related problems

An engine driver moving towards a wall with velocity of 50 ms^(-1) emits a note of frequnecy 1.2 kHz . The frequency of note after reflection from the wall as heard by the engine driver when speed of sound in air is 350 ms^(-1) is :

An engine driver moving towards a wall with velocity of 50m/s emits a note of frequcency1.5kHz. The frequency of note after reflection from the wall as hear by the engine driver when speed of sound in air is 350m/s is

An engine driver moving towards a wall with velocity of 50ms^(-1) emits a note o frequency 1.2kHz. The frequyency of note after reflection from the wall is eard by the engine driver when speed of sound in air is 350ms^(-1) is

The driver of a car travelling with a speed of 30 m/s towards a wall sounds a siren of frequency 500 Hz. If the velocity of sound in air is 330 m/s, then the frequency of the sound reflected from the wall and as heard by the driver is

An automobile moving at 30 m/s is approaching a factory whistle that has a frequency of 500 Hz. If the speed of the sound in air is 340 m/s, then the apparent frequency of the whistle as heard by the driver is

A police car with a siren of frequency 8 KHz is moving with uniform velocity 36 Km//hr towards a ball building which reflects the sound waves. The speed of sound in air is 320 m//s . The frequency of the siren heard by the car driver is

TARGET PUBLICATION-WAVE MOTION -MCQ 7.1

An engine blowing a whistle of frequency 133 Hz moves with a velocity ...
Text Solution
|
A passenger is sitting in a fast moving train The engine of the train...
Text Solution
|
A source of sound and a listener both are moving in the same direction...
Text Solution
|
If a stationary observer notes a change of 25% in the frequency of a w...
Text Solution
|
A train A is travelling at a speed of 108 km hr^(-1) The train appro...
Text Solution
|
Two cars are approaching each other with same speed of 20 m//s . A ma...
Text Solution
|
An engine is moving on a circular track with a constant speed It .is b...
Text Solution
|
An engine driver moving towards a wall with a velocity of 60 m/s emit...
Text Solution
|
An object producing a pitch of 600 Hz approaches a stationary person i...
Text Solution
|
When both source and listener approach each other with a velocity equa...
Text Solution
|
The difference between the apparent frequency of a sound of soun as pe...
Text Solution
|
A wave is expressed by the equation y=0.5sinpi(0.01x-3t) where y a...
Text Solution
|
Two sources of sound A and B produce the wave of 350 Hz ,they vibrate...
Text Solution
|
A tuning fork whose frequency is given by the manufacturer as 512 Hz i...
Text Solution
|
Two sounding bodies producing prograssive waves given by y1 =4 sin (4...
Text Solution
|
A source of sound emitting a note of frequency 90 Hz moves towards an ...
Text Solution
|
A train has just completed a U-curve in a trach which is a semi circle...
Text Solution
|
Assertion :on reflection from a rigid boundary (denser medium) there i...
Text Solution
|
A sonic source, located in a uniform medium, emits waves of frequency ...
Text Solution
|
The well known example of longitudinal wave is
Text Solution
|